baber/WOPTO huggingface dataset:
Patent CA-2083509-C (CA)
Title: Gas analyzers
Inventor: APPERSON JERRY R
IPC: G01J3/10
Filed: 1991-05-22
Granted: 1998-08-18
Abstract: Gas analyzer transducers of the NDIR type and units or systems for such transducers. Infrared radiation emitter (80) has a substrate (90) with electrically resistive, emissive film (102) on one surface and is so mounted on a base that it can freely expand as the emitter heats up. Commutators (82) connect the emitter (80) to a power source (33). Power supply (33) generates pulses in which successive pulses have opposite polarities. Pulse generating circuitry has two complementary pairs of MOSFETS (314, 316, 318, 320) in an H-bridge configuration. Voltage regulators (380, 386) supply positive and negative operating pulses to drive (302) and watchdog circuits (306, 308, 312) for selectively disenabling the pulse outputting circuitry. A detector unit (30) detects energy in two different wavelength bands. Beam splitter (542) directs a beam to data detector (548) and reference detector (540). Bandpass filters (576, 578) and optical traps (610, 612) are in front of the detectors. Detectors (540, 548) and beam splitter (542) are maintained at the same, selected temperature by data and reference detector heaters (544, 546) and temperature responsive controller (548). Detector unit (30) is electrostatically shielded.
Patent CA-2086894-C (CA)
Inventor: HART HOYT E
IPC: A47G1/20
Filed: 1993-01-07
Granted: 2004-07-20
Abstract: The invention concerns apparatuses and methods for hanging frames upon mounting surfaces. The principal apparatus of the invention, upon which a frame is hung, is securely attached to a mounting surface, such as a wall. The apparatus comprises a generally planar body 10 with a protruding supporting rail 40, alignment notches 18,18', spirit level 24, bracket recess 39, and mounting holes 30,32,33, and is particularly well suited for use with metal frames 52 with universal assembly channels 54. The supporting rail 40 of the apparatus is designed to be inserted within universal assembly channels 54 in metal frames 52, thus securely yet slidably and removably attaching the apparatus to the frame. The invention also includes an adapter bracket 70 to allow the principal apparatus to be used with any kind of frame, and special corner brackets 130,130' to allow the use of the principal apparatus with unusually heavy or wide frames.
Patent CA-2092676-C (CA)
Title: Fire retardant entangled polyester nonwoven fabric
Inventor: HUGHES ALFRED J
IPC: D04H1/46
Filed: 1993-03-12
Granted: 2003-12-30
Abstract: An entangled polyester fiber nonwoven fabric with balanced tensile strength properties and with a fire retardancy in both the machine and cross machine directions of greater than 20 secs. when measured in accordance with NFPA Test No. 702.
Patent CA-2097599-C (CA)
Inventor: ASPLUND GUNNAR
IPC: H02J3/01
Filed: 1992-10-13
Granted: 1996-06-11
Abstract: A method and a device in an electric power network (1), comprising an active filter (4) controllable via a control input (41), for reducing disturbances generated by a distubance source (6) located in and/or connected to the power network. A control member (8) is adapted, in dependence on the control deviation (DU) from a desired value (Y2iR) of at least one state variable (Y2i) sensed in the power network (1), to generate a control signal (C1) which is supplied to the control input (41). The control member (8) is adapted to transform the control deviation (DU) in a filter device (93) within a transfer function (FI) which simu-lates the inverse of the transfer function (F1') from the control signal (C1) to the control deviation (DU) and/or to filter the out-put signal of the controller in a filter device (943, 953, 956) without any phase shift.
Patent CA-2097616-C (CA)
Title: Tool construction
Inventor: GEIGER ROBERT E
IPC: B25F5/00
Filed: 1993-06-15
Granted: 2004-02-10
Abstract: A power tool construction wherein an integrated pressure fluid motor is provided with a unitary motor cylinder and back head and an external cooperative porting surface for cooperation with a valve porting surface. A further feature of the construction provides a cooperating front head plate with concentric alignment lands for attachment of the motor and a power output device such as a gear reducer.
Patent CA-2098958-C (CA)
Title: Photosensitive compositions and lithographic printing plates with reduced propensity to blinding
Inventor: WALLS JOHN E
IPC: G03F7/00
Filed: 1993-06-22
Granted: 1998-08-18
Abstract: Photosensitive compositions, useful in lithographic printing plates which can be developed with aqueous developing solutions, comprise a diazo resin, an acid-substituted ternary acetal polymer, and a copolyester of an unsaturated dicarboxylic acid and an oxyalkylene ether of an alkylidene diphenol.  The acid-substituted ternary acetal polymers are comprised of recurring units which include three six-membered cyclic acetal groups, one of which is unsubstituted or substituted with an alkyl or hydroxyalkyl group, another of which is substituted with an aromatic or heterocyclic moiety, and a third of which is substituted with an acid group, an acid-substituted alkyl group or an acid-substituted aryl group.
Patent CA-2110208-C (CA)
Inventor: YOSHIDA YASUHIRO
IPC: H02P29/00
Filed: 1993-11-29
Granted: 1997-10-07
Abstract: A speed control system for controlling a two-mass system having a motor and a load connected through an elastic shaft, comprising: a speed control amplifier for amplifying a difference between a preset speed and a motor speed; a load torque estimate observer for obtaining a load torque estimate; a model machine control system for outputting a load torque command upon receiving the sum of the output of the speed control amplifier and the load torque estimate, the speed control system controlling the two-mass system according to the load torque command; means for outputting an observer speed estimate from a first integral factor which has a model machine time constant of the sum of a machine time constant of the motor and a machine time constant of the load in such a manner so as to input a difference between the load torque estimate and the load torque equivalent value into the first integral factor; means for determining an inertia of the two-mass system by dividing the output from the first integral factor by the motor speed; and means for controlling the model machine control system and the speed control amplifier based on the inertia of the two-mass system.
Patent CA-2117189-C (CA)
Inventor: ASKESTAD SIGMUND
IPC: E21B43/01
Filed: 1993-07-02
Granted: 2004-10-26
Abstract: A system for turning a swivel or swivels aboard a vessel for oil extraction at sea, consisting of a stationary swivel pan connected to a rotary drilling rig on a vessel, and one or more rotating parts connected to the vessel. The rotating swivel parts are connected to a torsionally rigid frame structure (8) via a drive mechanism which transmits the rotary motion between the vessel and the swivel without angular displacement or significant reactive forces in the frame structure (8). The vertical frame structure (8) consists of four walls where one of the walls forms a gate (20) for the insertion and removal of a whole swivel or parts of a swivel. The frame structure (8) is attached to an overhead frame (7) which extends over the whole diameter of the rotary drilling rig and is secured to the hull of the vessel.
Patent CA-2119807-C (CA)
Inventor: RANTANEN RAUNO
IPC: D21H23/34
Filed: 1994-03-24
Granted: 2004-02-17
Abstract: A method and apparatus for limiting the width of a coating and/or preventing damage to roll ends while coating or surface sizing paper or an equivalent web material in a coating device in which a coating agent, such as size, coating paste or equivalent, is introduced into the coating device to an application zone defined by a coating member, a moving base, lateral seals, and a front wall and spread onto the moving base by the coating member which is loaded against the moving base. Liquid jets are sprayed into the areas outside the coating width, substantially over the width defined by the lateral seals and the roll ends, either onto the moving base before the coating member in the running direction of the moving base or directly into the nip formed by the moving base and the coating member. The liquid jets lubricate the nip and dilute the coating agent that has entered into the areas outside the coating width. The excess amount of the sprayed liquid is collected and removed to prevent entry of the excess amount of the sprayed liquid into a recirculation system the coating agent and prevent the coating agent from being diluted.
Patent CA-2120317-C (CA)
Inventor: WILLITS WILLIAM G
IPC: A61C13/24
Filed: 1994-03-30
Granted: 2004-06-22
Abstract: The present invention entails a partial denture that is basically constructed of a relatively hard acrylic material and includes a series of artificial teeth implanted along the ridge of the denture. The denture is particularly designed for a certain patient and is provided with at least one existing tooth opening for accommodating certain existing teeth of the patient. Formed about the buccal flange area of the denture and adjacent the existing tooth opening is an elastic retainer strip that is integrally molded with the relatively hard acrylic material of the denture. This elastic retainer strip engages the patient's gum in front of the existing teeth that project through the opening in the denture. On the opposite side of the existing tooth opening and opposite the elastic retainer strip there is provided a metal filler panel that is also bonded or integrally molded with the relatively hard acrylic material. Formed along an upper terminal edge of the metal filler panel is at least one metal tooth rest or clamp. The tooth clamp extends from the upper terminal edge of the metal filler panel and over a portion of at least one existing tooth and wherein the metal clamp turns down and clamps downwardly onto a top portion of at least one existing tooth. The clamping action of the metal clamp assists in retaining the entire denture in a secure and proper position within the patient's mouth, combining the benefits of tooth support in addition to tissue-bone support.
Patent CA-2122872-C (CA)
Inventor: PAGE GEORGE
IPC: E04H15/22
Filed: 1994-05-04
Granted: 2004-03-16
Abstract: An inflatable storage chamber defined by a flexible membrane comprises means for access to the chamber and means for inflating the chamber. The chamber is designed for storing items such as motor vehicles, machinery and furniture.
Patent CA-2134268-C (CA)
Title: Absorbent article having a body-accommodating absorbent core
Inventor: LASSEN FREDERICH OMA
IPC: A61F13/53
Filed: 1994-10-25
Granted: 2005-10-04
Abstract: An absorbent article for absorbing body fluids is provided having an absorbent core positioned between a fluid-permeable cover and a fluid-impermeable baffle. The absorbent core includes a central, longitudinal flexure axis which substantially extends the length of the absorbent core. The central, longitudinal axis generally divides the absorbent core into first and second longitudinal members having an outer boundary and wherein the first member has a second flexure axis and the second member has a third flexure axis. Flanking the outer boundary of the first and second members are a third and a fourth longitudinal absorbent member, respectively. The third and fourth absorbent members are positioned so that, when said absorbent article is subjected to lateral compressive forces, the first and second members preferentially bend convexly upward, and said absorbent core generally acquires a "W" shaped configuration.
Patent CA-2140646-C (CA)
Title: Closed cell alkenyl aromatic polymer and process of making same
Inventor: SMITH ROY E
IPC: C08J9/14
Filed: 1993-05-28
Granted: 2003-01-21
Abstract: Disclosed is a process for making extruded, closed-cell alkenyl aromatic polymer foam structure having an average cell size of from 0.3 to 3.0 millimeters. The process comprises: (a) heating an alkenyl aromatic polymer material having greater than 50 percent by weight alkenyl aromatic monomeric units to form a melt polymer material; (b) incorporating into the melt polymer material at an elevated pressure a blowing agent comprising at least 50 percent by weight 1,1-difluoroethane (HFC-152a) based upon the total weight of the blowing agent to form a foamable gel; (c) cooling the Foamable gel to an optimum foaming tempera-ture prior to extrusion through a die; and (d) extruding the foamable gel through a die to form the foam structure. Further dis-closed is a foam structure made according to the above process.
Patent CA-2141465-C (CA)
Inventor: VILLAX PETER
IPC: B05D3/00
Filed: 1995-01-31
Granted: 2002-01-22
Abstract: A new inhalation device, which during operation causes an aerosol to be formed inside a chamber such as a capsule which occludes one end of the inhalation tube, the capsule having holes at its extremities which admit airflow. The airflow causes the powder contained inside the capsule to be surprisingly transported to the capsule extremity contrary to the direction of inhalation, that is towards the air entry holes in the capsule, and then to form an aerosol until all powder has been removed from the capsule or chamber through the tube, the duration of inhalation being chiefly regulated by the size and proportion of the capsule holes. The tube has air inlets downstream of the capsule to permit a balanced airflow that will transport the finely suspended powder into the lungs, maximizing the fraction of medicament deposited therein.
Patent CA-2146444-C (CA)
Inventor: MONCRIEF FRANK
IPC: B65B5/10
Filed: 1994-08-11
Granted: 2005-10-18
Abstract: A continuous motion, end loading packaging machine (10) forms article groups of a predetermined number and configuration using a flight type article selector (16). The packaging machine (10) is flexible in its ability to package articles of different heights and diameters in various product configurations. The packaging machine (10) includes adjustable guide rails (34) to selectively change product infeed lane widths. The machine (10) also includes means to phase adjust the selector flights (60) and allows for easy selector flight replacement.
Patent CA-2153042-C (CA)
Inventor: DEMURO DAVID MARK
IPC: H02J1/00
Filed: 1994-10-17
Granted: 1997-02-25
Abstract: In summary, the present invention provides a method and apparatus for determining an external power supply type and modifying the charging of the internal battery (14) based upon the external power supply type and battery information. The device has an external power adapter (12) used to provide power to the device (10), as well as charging current for the battery which is regulated by the internal battery charger. A microcontroller (20) in the device (10) regulates the charging current to the battery (14). The microcontroller (20) preferably contains an A/D converter (21) which is connected to a pull-up resistor (32) internal to the device, and to a pull-down resistor (34) in the external power adapter (12). The voltage generated by the resistor divider network including the pull-up resistor (32) and the pull-down resistor (34) in the external power adapter is used to identify the external power adapter type. By changing the value of the pull-down resistor (34) in the external power supply to identify the external power supply, the microcontroller (20) in the apparatus may determine the optimum charging profile to use for the battery based upon the charger type and other information relating to the battery.
Patent CA-2153520-C (CA)
Inventor: WELCH M BRUCE
IPC: C07C51/377
Filed: 1995-07-10
Granted: 1999-08-31
Abstract: A catalyst system comprising a bridged fluorenyl-containing metallocene, an unbridged metallocene and a suitable cocatalyst and the use of such catalyst systems to produce olefin polymers. Also novel olefin polymers produced by those processes.
Patent CA-2159579-C (CA)
Title: Portable single-cup washer
Inventor: MEILLEUR MICHEL
IPC: B08B9/093
Filed: 1995-09-29
Granted: 1998-01-06
Abstract: This single portable single-cup washer comprises a container having a locking cover.  A water driven elongated member has a plurality of water-spray nozzles there along and at its base radial blades defining radial water-spray nozzles, and water passages for the water-spray nozzles.  The elongated member is rotatably mounted at its base, inside the container and has a water inlet joining the water pas-sage for revolving that member. The container has at the bottom a water-outlet. A cup holder is mounted onto the container above and adjacent the radial blades, for recei-ving a cup upside down and a spring fasten to the locking cover to urge against the bottom of the cup and thereby the top of the cup is pressing against the cup holder and there-by frictionally holding the cup    and counteracting the water against the cup.
Patent CA-2173814-C (CA)
Inventor: ANCHOR MICHAEL J
IPC: C09J125/00
Filed: 1996-04-10
Granted: 2005-06-07
Abstract: An improved emulsion polymerization process utilizing at least one substantially water-insoluble ethylenically unsaturated monomer is provided for forming discrete solid polymeric particles suitable for use in coating and/or adhesive applications. During at least the initial portion of the polymerization a dissolved water-soluble polymerizable surfactant (as defined) formed by the reaction of a diallylamine, ethylene oxide, and propylene oxide and/or butylene oxide additionally is provided in the reaction zone in the continuous aqueous phase. The water-soluble polymerizable surfactant undergoes copolymerization and is substantially completely consumed during the course of the emulsion polymerization. The emulsion polymerization is carried out on a stable basis, there is no need to attempt to remove a surfactant at the conclusion of the emulsion polymerization, and the resulting polymeric particles are particularly well suited for coating and/or adhesive end uses where they form stable films and exhibit improved adhesion characteristics.
Patent CA-2174988-C (CA)
Inventor: CANNELLA JAMES E JR
IPC: H04L12/56
Filed: 1996-04-25
Granted: 2000-04-04
Abstract: A data communications protocol for single path media having low data error rate requires the generation of a data packet with a start code field having a predetermined pattern, a byte count field for defining a data field having a maximum predetermined length in bytes, a data payload field having a byte count according to the value of the byte count field and a cyclic redundancy check field of predetermined length. The value of the byte count field may be fixed, may be changed from packet to packet or may be changed upon intialization. The described data communications protocol permits utilization with data types varying from high definition television to alarm reporting applications. Moreover, the data rate may be varied by varying an idle time signal duration up to a maximum (when the idle time signal duration isreduced to zero). According to one exemplary embodim ent for plastic fiber optic media, MPEG2 transport stream packets may be transmitted at 54 Mbaud over distances of 20 meters or even more with other media.
Patent CA-2175807-C (CA)
Title: Helicopter landing gear assembly
Inventor: COLLINS BOBBY A
IPC: B64C25/52
Filed: 1994-11-04
Granted: 2005-12-27
Abstract: An improved helicopter landing gear assembly (12) to substantially increase useful service life. The crosstubes (14) are constructe d of a material that allows use of thicker crosstubes thereby reducing the ope rating stress in the crosstubes (14) and helping to incr ease the fatigue life, while at the same time preserving the required energy absorpti on characteristics. The inside and outside of the cross tubes (14) are shot peened to help increase the fatigue life. The crosstubes (14) are formed in an unstable temper condition thereby reducing the stress that is induced into the part during formation, and thus connected to the cr osstubes (14) by fasteners (64) located at the sides of the straps (20) and closer to the neutral bending axis of the crosstube (14) so that th e fasteners (64) and the fastener holes (48) are subject ed to lower stress levels. The combination of these improvements results in a substant ially increased life of the landing gear assembly.
Patent CA-2178605-C (CA)
Inventor: HILLE THOMAS
IPC: A61K31/44
Filed: 1994-12-06
Granted: 2006-02-14
Abstract: A pharmaceutical formulation for preventing or pre-treating poisoning by organophosphoric cholinesterase inhibitors is characterized in that it consists of an active substance combination of at least one parasympathomimetic agent and at least oneparasympatholytic agent.
Patent CA-2182008-C (CA)
Inventor: SCHOTTENFELD BARBARA
IPC: A63H13/16
Filed: 1996-03-20
Granted: 2000-05-30
Abstract: Nouveau distributeur d'objets solides tels que des préservatifs. Les caractéristiques nouvelles se basent spécifiquement sur les mouvements d'un élément distributeur sous l'effet d'un ressort, lequel élément déplace un objet tel qu'un préservatif emballé depuis l'intérieur d'un compartiment jusqu'à l'extérieur de celui-ci par une ouverture. Le distributeur est un dispositif d'amusement au quotidien dissimulant un préservatif. Il utilise un ressort (6), tel qu'un ressort à boudin, lequel achemine le préservatif (1a) depuis un compartiment (2) de magasin et à travers un volet (4) destiné à être libéré lors de son utilisation. Le ressort (6) est ramené à sa position d'origine, une fois utilisé. Le fait de tirer sur une languette (7a) du distributeur (1) provoque la libération du ressort (6) à l'intérieur du magasin (2), forçant le préservatif (1a) à passer à travers le volet (4), tel que des portes miniatures. Le ressort (6) ouvre le magasin (2) et les portes, permettent audit ressort (16) de faire avancer le préservatif (1a) jusqu'à la position de distribution à l'utilisateur.
Patent CA-2184992-C (CA)
Inventor: MUTCH WILLIAM ALAN C
IPC: A61M60/31
Filed: 1995-03-15
Granted: 2004-11-23
Abstract: The flow of a biological fluid to an organ is computer-controlled so that the natural variation of such flow is simulated. Specifically described are control of a blood pump flow output during CPB to mimic normal ?ulsatile blood flow from the heart and control of a ventilator output ?o mimic normal breathing of healthy lungs. A pattern of variation over time of instantaneous flow of a biological fluid to an organ of a mammalian species is established, a variable control parameter for regulation of flow of the biological fluid to the organ is generated in accordance with the pattern, and the flow of biological fluid to the organ is controlled in accordance with the variable control parameter.
Patent CA-2185470-C (CA)
Title: Compositions and methods for vaccines comprising .alpha.-galactosyl epitopes
Inventor: GALILI URI
IPC: A61P31/12
Filed: 1995-03-13
Granted: 2005-10-25
Abstract: The invention encompasses methods and compositions for inducing an immune response in an anti-Gal synthesizing animal including viral and tumor antigens manipulated to express .alpha.-galactosyl epitopes.
Patent CA-2188038-C (CA)
Inventor: DOWNES GEORGE R
IPC: A61B3/113
Filed: 1995-04-18
Granted: 2005-11-08
Abstract: A method and system are provided for sensing eye motion, such as saccadic ey e motion, in a non-intrusive fashion. An optical delivery arrangement (105) converts a laser beam pulse (104) into a pluralit y of light spots (21-24). The light spots are focused su ch that they are incident on a corresponding plurality of positions located on a boundary (12) whose motion is coincident with that of eye movement. The boundary can be defined by two visually adjoining surfaces hav ing different coefficients of reflection. Energy is refl ected from each of the positions located on the boundary receiving the light spots . An optical receiving arrangement (156) detects the ref lected energy from each of the positions. Changes in reflected energy at one or mor e of the positions is indicative of eye motion.